Mirrorless alternatives to MFT zooms?

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Ontario Gone
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Mirrorless alternatives to MFT zooms?
3 months ago

As many people all over these forums seem to ask, is the grass greener? Well the Sony 70-200 F4 FF lens was just reviewed by PZ, here is the link and a few things mentioned.

In this comparison is also apparent that there's no mirrorless bonus with respect to size and weight. Tele lenses require a certain length and diameter so the shorter lens-to-sensor distance doesn't make a difference anymore.

On DSLRs you may use such a lens for sports but this is out-of-question at least when combined with the Sony A7R which is not exactly renowned for its AF speed, let alone AF tracking. This is not a lens issue but primarily a limitation of the camera.

The lens incorporates a image stabilizer ("Optical Steady-Shot" or OSS). Whatever Sony claims it to be - it doesn't work overly well on the A7R due to the shutter vibration issue of this camera. The number of sub-standard outliers were shockingly high during our field trips and that's especially at rather conventional shutter speeds.

as already mentioned in the introduction you shouldn't really pair this lens with the Sony A7R anyway. The A7R creates rather massive shutter vibrations that are a game spoilers when using tele-lenses - even with activated OSS.

Make of it what you will. As to the size issue they mention, here is a photo of it on the A7r. Not exactly what i would call compact. Below is a comparison between the two MFT largest bodies from Panny/Oly with the 35-100 F2.8. This means they match the FL and are only a stop slower.

I would rather lose a stop of light and not have to worry about terrible shutter shock, as well as saving a boat load of space.

And again, from a different angle.

Now im sure this combo isn't always bad at everything, but for the cost of the lens plus the camera ($3800 total) you would have to hold a gun to my head. But, considering the only other alternative is a poor 55-210, there isn't much choice. For anybody looking at this kind of system as a mirrorless alternative for longer lenses, it may not be the best move.

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